MSR ISOPRO 4oz Clean Burning Isobutane Fuel
MSR IsoPro is a performance-boosting, 80/20 blend of isobutane and propane, with the purest isobutane (5% or less n-butane) of any canister fuel. This clean-burning formulation maintains higher internal pressure at lower temperatures than standard butane/propane mixtures, delivering superior cold weather performance and more consistent output over the life of the canister.
4 ounce Size: The 4 oz. canister is sized to fit inside the 1.0L Reactor® Stove System.
- Improved Performance: 80/20 blend of isobutane and propane delivers superior performance throughout the life of the canister and in colder temperatures.
- Clean-Burning: Zero-maintenance combustion.
- Fuel Gauge: Built-in float gauge determines how much fuel is left.
Recyclable: Consult your local recycling center for regulations.
Please Note: This fuel product can only be shipped via ground shipping options to the lower 48 USA states. It cannot ship internationally. Please choose the appropriate shipping method during checkout.